Need Computer Supplies Store

[Island Girl]

Where near the lake would I buy a null modem cable? Preference is Wolfboro (walking distance from the docks), Alton, next (car access will do), next choice is anywhere within driving distance of W.Alton.

Since this type of cable is unusual these days the store would have to cater to computer supplies in general, not a Wal-Mart that has just a few of the most commonly needed things.

Thanks